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Abstract:

Practice can enhance of perceptual sensitivity, a well-known phenomenon called perceptual learning. However, the effect of practice on subjective perception has received little attention. We approach this problem from a visual psychophysics and computational modeling perspective. In a sequence of visual search experiments, subjects significantly increased the ability to detect a “trained target”. Before and after training, subjects performed two psychophysical protocols that parametrically vary the visibility of the “trained target”: an attentional blink and a visual masking task. We found that confidence increased after learning only in the attentional blink task. Despite large differences in some observables and task settings, we identify common mechanisms for decision-making and confidence. Specifically, our behavioral results and computational model suggest that perceptual ability is independent of processing time, indicating that changes in early cortical representations are effective, and learning changes decision criteria to convey choice and confidence. © 2016 Elsevier Inc.

Registro:

Documento: Artículo
Título:Perceptual learning effect on decision and confidence thresholds
Autor:Solovey, G.; Shalom, D.; Pérez-Schuster, V.; Sigman, M.
Filiación:Laboratorio de Neurociencia Integrativa, Buenos Aires, Argentina
Instituto de Cálculo, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Laboratorio de Neurociencia, Universidad Torcuato di Tella, Buenos Aires, Argentina
Departamento de Física-IFIBA, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Laboratorio de Neurobiología de la Memoria, Departamento Fisiología, Biología Molecular y Celular, FCEyN, UBA and IFIBYNE-CONICET, Buenos Aires, Argentina
CONICET, Argentina
Palabras clave:Confidence; Perceptual learning; Signal detection theory; Subjective awareness; Visual psychophysics; attentional blink; awareness; consensus development; decision making; human; human experiment; learning; psychological model; psychophysics; signal detection; visibility; visual masking; adult; female; learning; male; masking; perceptive discrimination; photostimulation; physiology; procedures; reaction time; vision; young adult; Adult; Attentional Blink; Decision Making; Female; Humans; Learning; Male; Perceptual Masking; Photic Stimulation; Reaction Time; Signal Detection, Psychological; Visual Perception; Young Adult
Año:2016
Volumen:45
Página de inicio:24
Página de fin:36
DOI: http://dx.doi.org/10.1016/j.concog.2016.08.010
Título revista:Consciousness and Cognition
Título revista abreviado:Conscious. Cogn.
ISSN:10538100
CODEN:COCOF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10538100_v45_n_p24_Solovey

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Citas:

---------- APA ----------
Solovey, G., Shalom, D., Pérez-Schuster, V. & Sigman, M. (2016) . Perceptual learning effect on decision and confidence thresholds. Consciousness and Cognition, 45, 24-36.
http://dx.doi.org/10.1016/j.concog.2016.08.010
---------- CHICAGO ----------
Solovey, G., Shalom, D., Pérez-Schuster, V., Sigman, M. "Perceptual learning effect on decision and confidence thresholds" . Consciousness and Cognition 45 (2016) : 24-36.
http://dx.doi.org/10.1016/j.concog.2016.08.010
---------- MLA ----------
Solovey, G., Shalom, D., Pérez-Schuster, V., Sigman, M. "Perceptual learning effect on decision and confidence thresholds" . Consciousness and Cognition, vol. 45, 2016, pp. 24-36.
http://dx.doi.org/10.1016/j.concog.2016.08.010
---------- VANCOUVER ----------
Solovey, G., Shalom, D., Pérez-Schuster, V., Sigman, M. Perceptual learning effect on decision and confidence thresholds. Conscious. Cogn. 2016;45:24-36.
http://dx.doi.org/10.1016/j.concog.2016.08.010